Home / 12,075.45-18,113.09-3,755.46

Finding the Fourth Proportional to 12,075.45, 18,113.09 and 3,755.46

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Solution

The fourth proportional to 12,075.45, 18,113.09 and 3,755.46 is: 5,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.45 : 18,113.09 = 3,755.46 : x
  2. Step 2: Convert to fraction form
    12,075.45/18,113.09 = 3,755.46/x
  3. Step 3: Cross multiply
    12,075.45x = 18,113.09 × 3,755.46
  4. Step 4: Simplify right side
    12,075.45x = 68,023,034.12
  5. Step 5: Solve for x
    x = 68,023,034.12/12,075.45
  6. Step 6: Final answer
    x = 5,633.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.